<?php
	class Rest{
		protected $_code = 200;
		private $_method = "";
		private $_content_type = "application/json";
		
		public function __construct(){
			$this->inputs();
		}
		
		public function get_referer(){
			return $_SERVER['HTTP_REFERER'];
		}
		
		public function response($data, $status){
			$this->_code = ($status)?$status:200;
			$this->set_header();
			echo $data;
			exit;
		}
		
		public function get_request_method(){
			return $_SERVER['REQUEST_METHOD'];
		}
		
		public function get_request_param(){
			
		}
		
		private function get_status_message(){
			$status = array(
					100 => 'Continue',
					101 => 'Switching Protocols',
					200 => 'OK',
					201 => 'Created',
					202 => 'Accepted',
					203 => 'Non-Authoritative Information',
					204 => 'No Content',
					205 => 'Reset Content',
					206 => 'Partial Content',
					300 => 'Multiple Choices',
					301 => 'Moved Permanently',
					302 => 'Found',
					303 => 'See Other',
					304 => 'Not Modified',
					305 => 'Use Proxy',
					306 => '(Unused)',
					307 => 'Temporary Redirect',
					400 => 'Bad Request',
					401 => 'Unauthorized',
					402 => 'Payment Required',
					403 => 'Forbidden',
					404 => 'Page Not Found',
					405 => 'Method Not Allowed',
					406 => 'Not Acceptable',
					407 => 'Proxy Authentication Required',
					408 => 'Request Timeout',
					409 => 'Conflict',
					410 => 'Gone',
					411 => 'Length Required',
					412 => 'Precondition Failed',
					413 => 'Request Entity Too Large',
					414 => 'Request-URI Too Long',
					415 => 'Unsupported Media Type',
					416 => 'Requested Range Not Satisfiable',
					417 => 'Expectation Failed',
					500 => 'Internal Server Error',
					501 => 'Not Implemented',
					502 => 'Bad Gateway',
					503 => 'Service Unavailable',
					504 => 'Gateway Timeout',
					505 => 'HTTP Version Not Supported');
			return ($status[$this->_code])?$status[$this->_code]:$status[500];
		}
		
		private function inputs(){
			switch($this->get_request_method()){
				case "POST":
					$this->_request = $this->cleanInputs($_POST);
					break;
				case "GET":
				case "DELETE":
					$this->_request = $this->cleanInputs($_GET);
					break;
				case "PUT":
					parse_str(file_get_contents("php://input"),$this->_request);
					$this->_request = $this->cleanInputs($this->_request);
					break;
				default:
					$this->response('DAo Anh Vu',406);
					break;
			}
		}
		
		private function cleanInputs($data){
			$clean_input = array();
			if(is_array($data)){
				foreach($data as $k => $v){
					$clean_input[$k] = $this->cleanInputs($v);
				}
			}else{
				if(get_magic_quotes_gpc()){
					$data = trim(stripslashes($data));
				}
				$data = strip_tags($data);
				$clean_input = trim($data);
			}
			return $clean_input;
		}
		
		protected function set_header(){
			header("HTTP/1.1 ".$this->_code." ".$this->get_status_message());
			header("Content-Type:".$this->_content_type);
		}
	} 
?>